What special food snacks are there in Hebei that must be eaten?

What I like to eat is buckwheat noodles and river leakage, which is one of the three wonders of northern pasta, and is as famous as Lamian Noodles in Beijing and Daoxiao Noodles in Shanxi. Buckwheat noodles are divided into white buckwheat noodles and black buckwheat noodles, which are traditional crops in Chengde, especially in Bashang area. The pasta made from them is smooth and smooth. The method is to mix buckwheat flour with weak alkaline water first, then drain the water with a special tool, press the dough into strips, cook it in a pot, and add seasonings such as minced garlic, sesame oil and vinegar to serve.